Cisco CISCO851-K9 - 851 Integrated Services Router User Manual

4-6
Cisco 850 Series and Cisco 870 Series Access Routers Software Configuration Guide
OL-5332-01
Chapter 4 Configuring PPP over ATM with NAT
Configure DSL Signaling Protocol
Configure DSL Signaling Protocol
DSL signaling must be configured on the ATM interface for connection to your ISP. The Cisco 857 and
Cisco
877 routers support ADSL signaling over POTS, the Cisco 876 supports ADSL signaling over
ISDN, and the Cisco
878 supports SHDSL signaling. Based on the router you are configuring, see one
of the following sections to configure the appropriate DSL signaling protocol.
• Configuring ADSL
• Configuring SHDSL
Configuring ADSL
The default configuration for ADSL signaling is shown in Table 4-1.
Ta b l e 4-1 Default ADSL Configuration
Attribute Description Default Value
Operating mode Specifies the operating mode of the digital subscriber line
(DSL) for an ATM interface.
• ADSL over POTS—ANSI or ITU full rate, or
automatic selection.
• ADSL over ISDN—ITU full rate, ETSI, or
automatic
selection.
Auto
Loss of margin Specifies the number of times a loss of margin may occur. —
Training log Toggles between enabling the training log and disabling the
training log.
Disabled
Step 5
no shutdown
Example:
Router(config-if-atm-vc)# no shutdown
Router(config-if)#
Enables interface and configuration changes just
made to the ATM interface.
Step 6
exit
Example:
Router(config-if)# exit
Router(config)#
Exits configuration mode for the ATM interface.
Command Purpose

Cisco CISCO851-K9 - 851 Integrated Services Router Specifications

General

Brand	Cisco
Model	CISCO851-K9 - 851 Integrated Services Router
Category	Network Router
Language	English